(1)
5
7 ×21×
3
10 ,
=
5×21×3
7×10 ,
=
9
2 ;
(2)
18
35 ÷0.6×
2
3 ,
=
18
35 ×
10
6 ×
2
3 ,
=
4
7 ;
(3)2-
6
13 ÷
9
26 -
2
3 ,
=2-
4
3 -
2
3 ,
=2-(
4
3 +
2
3 ),
=2-2,
=0;
(4)
9
10 ×[
5
9 ÷(
1
2 -
1
6 )] ,
=
9
10 ×[
5
9 ÷
2
6 ] ,
=
9
10 ×
15
9 ,
=
3
2 ;
(5) (0.25+
1
3 )×(1.6÷
4
5 ) ,
=
3
4 ×2 ,
=
3
2 ;
(6)(
3
17 +
1
39 )×17+22÷39,
=
3
17 ×17+
1
39 ×17+
22
39 ,
=3+(
17
39 +
22
39 ),
=3+1,
=4.